US Bridges

Redington Street over Ammonoosuc River

Good

Grafton County, New Hampshire · 0.3 MI FR Bethlehem Tl · Structure no. 015302320005000

Built
2011
14 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
153 ft
1 main span
Daily traffic
2,061
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Redington Street over Ammonoosuc River is a steel stringer/multi-beam or girder carrying Redington Street over Ammonoosuc River in Grafton County, New Hampshire. It was built in 2011, so it is 14 years old, younger than the New Hampshire average of 56.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,061 vehicles a day, roughly 4% of them trucks, projected to reach 3,050 by 2043. The structure is 153 ft (46.5 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRedington Street
CrossesAmmonoosuc River
Location0.3 MI FR Bethlehem Tl
RouteCity Street 0
Coordinates44.30422, -71.74926
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating80.2 US tons
Inventory rating48.1 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length153 ft (46.5 m)
Longest span147 ft (44.8 m)
Deck width38 ft (11.7 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,061 (2023)
Projected traffic3,050 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$314,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Redington Street over Ammonoosuc River built?

It was built in 2011, making it 14 years old in 2025.

What condition is Redington Street over Ammonoosuc River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does Redington Street over Ammonoosuc River carry?

About 2,061 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Redington Street over Ammonoosuc River?

The structure is 153 ft (46.5 m) long with a longest span of 147 ft (44.8 m) and a deck 38 ft wide.

Who owns Redington Street over Ammonoosuc River?

It is owned by the City or Municipal Highway Agency.